dmaengine: edma: fix another memory leak
dmaengine: edma: fix another memory leak

commit 4b6271a6 fix a menory leak but one more existed in driver so fix that

Signed-off-by: Vinod Koul <5cf69c63beb17bf38d63aa0e923ee8256af0e205@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs